Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
17008excellentexcellent11excellent
160012excellentexcellent21excellent
150019excellentexcellent21excellent
140026goodexcellent31excellent
130016excellentexcellent11excellent
12009excellentexcellent11excellent
110011excellentexcellent21excellent
100025goodexcellent31excellent
090053goodexcellent71excellent
080065lightly pollutedexcellent111excellent
070062lightly pollutedexcellent71excellent
060049goodexcellent51excellent
050047goodexcellent81excellent
040054goodexcellent61excellent
030034goodexcellent31excellent
020028goodexcellent31excellent
010025goodexcellent31excellent
000028goodexcellent31excellent
230025goodexcellent31excellent
220017excellentexcellent21excellent
210024goodexcellent21excellent
200029goodexcellent31excellent
190036goodexcellent41excellent
180024goodexcellent21excellent